51265720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:173

約数の個数: 128

約数和(自身を含む): 133954560

約数和(自身を除く): 82688840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 47, 55, 67, 74, 88, 94, 110, 134, 148, 185, 188, 220, 235, 268, 296, 335, 370, 376, 407, 440, 470, 517, 536, 670, 737, 740, 814, 940, 1034, 1340, 1474, 1480, 1628, 1739, 1880, 2035, 2068, 2479, 2585, 2680, 2948, 3149, 3256, 3478, 3685, 4070, 4136, 4958, 5170, 5896, 6298, 6956, 7370, 8140, 8695, 9916, 10340, 12395, 12596, 13912, 14740, 15745, 16280, 17390, 19129, 19832, 20680, 24790, 25192, 27269, 29480, 31490, 34639, 34780, 38258, 49580, 54538, 62980, 69278, 69560, 76516, 95645, 99160, 109076, 116513, 125960, 136345, 138556, 153032, 173195, 191290, 218152, 233026, 272690, 277112, 346390, 382580, 466052, 545380, 582565, 692780, 765160, 932104, 1090760, 1165130, 1281643, 1385560, 2330260, 2563286, 4660520, 5126572, 6408215, 10253144, 12816430, 25632860, 51265720]

約数ペア:

[(1, 51265720), (2, 25632860), (4, 12816430), (5, 10253144), (8, 6408215), (10, 5126572), (11, 4660520), (20, 2563286), (22, 2330260), (37, 1385560), (40, 1281643), (44, 1165130), (47, 1090760), (55, 932104), (67, 765160), (74, 692780), (88, 582565), (94, 545380), (110, 466052), (134, 382580), (148, 346390), (185, 277112), (188, 272690), (220, 233026), (235, 218152), (268, 191290), (296, 173195), (335, 153032), (370, 138556), (376, 136345), (407, 125960), (440, 116513), (470, 109076), (517, 99160), (536, 95645), (670, 76516), (737, 69560), (740, 69278), (814, 62980), (940, 54538), (1034, 49580), (1340, 38258), (1474, 34780), (1480, 34639), (1628, 31490), (1739, 29480), (1880, 27269), (2035, 25192), (2068, 24790), (2479, 20680), (2585, 19832), (2680, 19129), (2948, 17390), (3149, 16280), (3256, 15745), (3478, 14740), (3685, 13912), (4070, 12596), (4136, 12395), (4958, 10340), (5170, 9916), (5896, 8695), (6298, 8140), (6956, 7370)]